Description
The issue was addressed with improved memory handling. This issue is fixed in Safari 26, iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. Processing maliciously crafted web content may lead to an unexpected process crash.
Affected products
apple: safari; apple: ipados; apple: iphone os; apple: macos; apple: tvos; apple: visionos; apple: watchos; webkitgtk: webkitgtk; wpewebkit: wpe webkit
References10
- support.apple.com/en-us/125108 Release NotesVendor Advisory
- support.apple.com/en-us/125113 Release NotesVendor Advisory
- support.apple.com/en-us/125114 Release NotesVendor Advisory
- support.apple.com/en-us/125115 Release NotesVendor Advisory
- support.apple.com/en-us/125116 Release NotesVendor Advisory
- support.apple.com/en-us/125110
- seclists.org/fulldisclosure/2025/Sep/49 Mailing ListThird Party Advisory
- seclists.org/fulldisclosure/2025/Sep/53 Mailing ListThird Party Advisory
- seclists.org/fulldisclosure/2025/Sep/57 Mailing ListThird Party Advisory
- seclists.org/fulldisclosure/2025/Sep/59 Mailing ListThird Party Advisory
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 57 · as of 8 November 2026
- CWE
- CWE-119
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.